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Hongertech is a trusted global supplier of high-permeability Mu Metal cores, Permalloy laminations, and custom magnetic shielding components for current transformers, sensors, audio devices, and industrial power systems.
Explore ProductsInvested by Honger Technology (HK) Limited, Jiangsu Hongyun Precision Industry Co., Ltd. is a high-tech enterprise specializing in the R&D and manufacturing of Permalloy / Mu Metal cores, laminations, shielding parts, and other advanced magnetic materials.
Our products are widely used in miniaturized, energy-saving electronic devices and power supply systems. As environmentally preferred materials, they serve electric power plants, sensor manufacturers, and high-end audio equipment producers.
Key features of our permalloys include high magnetic permeability, low coercive force, minimal magnetic loss, and excellent thermal stability—ideal for zero-phase current (ZCT) cores, leakage breakers, transformers, EI-cores, and magnetic shields.
Learn more about our capabilities →Nickel-Iron Alloy Content in Mu Metal
Standard Grade Mu Metal Strip
High Metering Accuracy Cores
Precision Machining & Stamping
From raw Mu Metal strips to fully fabricated shielding cans and high-precision tape wound cores, we offer a complete line of magnetic components for sensitive applications.
High permeability 80% Ni-Fe Mu Metal alloy for precise metering with minimal ratio and phase angle error.
Tape Wound Core
NiFe-based Permalloy stator with high vacuum demagnetization for lasting durability and precision timing.
Stamping Part
Protects sensitive circuits from parasitic magnetic fields in audio transformers and current sensors.
Shielding CanTailored magnetic shields for prototyping, sampling, and specialized industrial applications.
CustomSoft ferromagnetic shield with high linearity and very low hysteresis for precision sensing.
Shielding SeriesPrevents EMI in current transformers; dual-action protection from external and internal fields.
Shielding TubeHigh initial permeability, low coercivity, minimal hysteresis and eddy current losses at low fields.
Raw MaterialUltra-high permeability, high saturation, low core loss—ideal for precision transformers.
Advanced CoreRobust enclosure for protecting sensitive components from electromagnetic interference.
Shielding CaseMade from 0.2–0.35mm Ni80 permalloy laminations; used in clamp meters and current sensors.
Stacking CoreUsed in high-accuracy power measurement systems for energy monitoring and distribution.
Cut CoreNickel-based alloy (Permalloy) laminations for high-end audio transformers and sensors.
LaminationOur advanced manufacturing capabilities and strict quality control ensure reliable, high-performance magnetic components.
High-speed precision stamping and CNC machining ensure tight tolerances and consistent quality across all parts.
Fully automated tape winding systems produce uniform, high-integrity tape wound cores with minimal defects.
High-vacuum demagnetization process enhances magnetic performance and ensures long-term stability.
Nickel Content
Standard Grade
High Accuracy Cores
Export Reach
Mu Metal is a nickel-iron-molybdenum alloy (typically 80% Ni) known for its extremely high magnetic permeability and low coercivity, making it ideal for magnetic shielding and sensitive core applications.
Our cores are used in high metering accuracy current transformers, hall sensors, clamp ammeters, audio transformers, power inverters, and EMI/EMC shielding systems.
Yes, we specialize in custom fabricated Mu-metal shields, including deep drawn cans, U-shields, and bent enclosures tailored to your design and prototyping needs.
Tape wound cores are made by winding thin Mu Metal strip into a toroid, offering high uniformity. Stacking cores are assembled from laminated sheets, ideal for specific sensor and metering applications.
We use vacuum melting, precision stamping, automatic winding, and high-vacuum demagnetization, along with rigorous magnetic property testing to ensure consistency and performance.
For product inquiries, technical specifications, or custom design support, reach out to our team.
13312903299
0517-88288066
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